What is the practice of alternating leguminous crops with forage crops to improve soil structure and fertility called?

What is the full form of $CDRI$?

Which of the following statements is $NOT$ a part of $IPM$ (Integrated Pest Management)?

In an experiment,freshly hatched larvae of an insect (Khapra beetle) were reared on a basal diet (complete diet without cholesterol) with increasing amounts of cholesterol. Results obtained are shown in the given graph.
The graph indicates:

Identify the odd one out.

In view of the current food crisis,it is said that we need another green revolution. Highlight the major limitations of the earlier green revolution.